Guidelines For Using Pedal Assistance; Using Gears - TDR FLEXI S501 User Manual

FLEXI
S501 20" Electric Folding Bicycle

Guidelines for Using Pedal Assistance

To get the best performance and service life from the pedal assistance system,
understand and apply the following techniques:
Note that some characteristics of how pedal assistance functions may differ from that
described here as a result of some special function settings.
•
Pedal assistance progressively reduces as bicycle speed increases, and stops
completely when the current speed exceeds 25kmh. Pedal assistance re-engages
when speed drops below 25kmh (provided you are pedalling).
•
Pedal assistance automatically reduces or disengages whenever the brakes are
activated (and / or when you stop pedalling).

Using Gears

Some model bicycles are equipped with gears. Gears are
used to change the ratio between rotations of the rear
wheel and the crank set. This enables you to pedal less and
travel faster on flat or downhill sections, or pedal faster and
travel slower to climb hills. Gearing is independent to pedal
assistance, so pedal assistance operates the same
regardless of selected gear. Remember, however, that pedal
assistance is "governed" by overall speed.
The selectable gears (A) are located on the rear wheel,
known as a "gear cluster" or "cassette". The larger the gear,
the less number of rotations per rotation of the crank. The
largest gear is the "lowest" and is referred to as "1". As each
gear becomes smaller, it is a "higher" gear then the previous
and is numbered sequentially. The number of gears may
vary between different models. Beneath the gear cluster is
the derailleur mechanism (B), which moves the chain so it
runs on different gears. The derailleur is operated by the
rider using controls mounted on the handlebars. The gear
change is "indexed" so each gear selection positively
engages – this is factory set and should require no
adjustment. There may be slight variations between bicycle
models in method to change gear "up" (from a lower gear to
a higher gear), or to change gear "down" (from a higher gear
to a lower gear). The image shows a "6-speed" type that
uses a button (C) for changing up gears (push button to
activate derailleur), and a lever (D) for changing down
gears (rotate lever forward to activate derailleur).
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